The Builder interface collapses the vertical representation of the stack horizontally and back after each action

Question

I am designing a view controller in Interface Builder and have a stack view. After any action (for example, moving any object to a small bit or changing the restriction by 1px), the entire view of the stack collapses horizontally, spoiling the entire layout. Then, when I perform any other action (for example, changing another restriction or even the same thing, it does not matter), it returns to the original correct location.

Here is a screenshot of the correct layout:

Here is the same look, immediately after changing literally anything:

- , ( ) , - , . . , , , 1000, . ? Xcode 9.2.

Answer 1

-:

( , , 1 10000) :

, .

.